Roushar said they'll have a better idea of Sims' possible return date as the week progresses and revealed he isn't the only injured tight end.

Andrew Gleichert, a walk-on who was awarded a scholarship before the opener against Boise State, has a broken wrist and will have to play with a cast the rest of the season.

"We got concerned with him being a point-of-attack blocker," Roushar said. "We feel like he's got to do a better job. He's working on it. With the loss of Dion, you're looking for something stronger at the point of attack."

Paul Lang has received increased playing time at tight end the past few games, and Roushar said the position will be by committee against the Hawkeyes.